A
ArenaArena (formerly LMArena, born as Chatbot Arena at UC Berkeley) operates the crowdsourced leaderboard and evaluation platform used industry-wide to benchmark and rank AI models.
3 Pulse stories
NR
Nous ResearchNous Research builds open-source AI models and agents, including the Hermes model family and agent, for decentralized and open AI infrastructure.
1 Pulse story
Total Raised
$250M
$125M
ArenaNous Research
Last Valuation
$1.7B
$1.5B
ArenaNous Research
AI infra
Sector
AI infra
2025
Founded
2023
San Francisco, CA
HQ
—
Private
Status
Private
Arena investors
FelicisUC InvestmentsAndreessen HorowitzKleiner PerkinsLightspeed Venture PartnersThe House FundLaude Ventures
Nous Research investors
ParadigmRobot VenturesUSVNorth Island VenturesDelphi VenturesOSS CapitalBalaji Srinivasan
Data from Value Add Pulse coverage and company research — see the full threads for Arena and Nous Research.